PROVIDENCE, R.I. — Seven of the eight hair-hanging circus acrobats who fell to the ground during a "human chandelier" stunt in Rhode Island last month have hired a Chicago-based law firm to represent them.

Clifford Law Offices said Monday that the women injured during a Ringling Bros. and Barnum & Bailey Circus performance are not yet filing a lawsuit. But it says it is conducting an in-depth investigation into all the possible entities that may be responsible for the accident.

The law firm says some of the injured acrobats will speak at a news conference Tuesday in Boston.

Two of the women have spinal cord injuries, and it's not known if they'll walk again.

Federal workplace safety investigators are still probing the accident.